NTK Lambda Sensor - OZA831-EE18 - Black
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Lambda Sensor 90341 NTK Oxygen 2R839G444AC C2C25956 C2C8442 OZA831EE18 QualityFree delivery in 1–3 days£101.73Visit shop →
Product Information
Full details
The NTK Lambda Sensor OZA831-EE18 is designed for vehicle owners and mechanics seeking to maintain precise engine management and exhaust efficiency. Its primary benefit is the optimization of the air-fuel mixture, which enhances fuel economy and extends the lifespan of the catalytic converter by ensuring lower emission output. While this sensor is highly engineered for performance, it requires careful handling during installation to prevent damage to the delicate internal sensing element.
All features
| Colour | Black |
|---|---|
| Model Part Number | 90341 |
| Brand | NGK NTK |
Extended Product Information
FAQs
How often should I replace my lambda sensor?
While there is no fixed interval, most manufacturers recommend checking sensor performance every 30,000 to 50,000 miles, or whenever engine efficiency drops.
Can I use oil-based cleaners on the sensor?
No. Never use cleaners, oils, or solvents on the sensor tip, as these will permanently damage the ceramic element.
Why is my new sensor not working immediately?
The engine control unit often requires a 'drive cycle' to relearn fuel trim values based on the data from the new sensor.
Does this sensor come with anti-seize applied?
It is best to check the threads upon unboxing. If they are dry, apply a minimal amount of high-temperature sensor-safe anti-seize to the threads only.
Is this a universal sensor?
No, the OZA831-EE18 is a specific part number. Always cross-reference with your vehicle's service manual or parts catalog before purchase.
Troubleshooting
Check Engine Light remains on after installation
Clear the fault codes from the vehicle's ECU using an OBD-II scanner, as the computer may still be storing the previous sensor's error.
Erratic engine idle or hesitation
Verify that the wiring harness connection is fully seated and that the electrical pins are not bent or corroded.
Pros and Cons
Pros
- Optimizes fuel consumption
- Protects the catalytic converter from damage
- Reduces harmful exhaust emissions
- High-quality construction for long service life
Cons
- Requires precise installation tools
- Sensitive to contamination during handling
- Not compatible with all vehicle models
Setup, Compatibility & Care
Before installation, verify that the OZA831-EE18 part number matches your vehicle's specific engine code and exhaust configuration. Always work on a cool exhaust system to prevent thermal burns. When installing, ensure the threads are clean and free of debris, and use an appropriate amount of anti-seize compound if recommended by the vehicle manufacturer, being extremely careful not to contaminate the sensor tip. Handle the sensor only by the body; never touch the sensing element with bare fingers or drop the unit, as internal damage can occur that may not be immediately visible.